Greater Castle Forest Weather Forecast

    • 70
    • 91

    Mostly Cloudy

    • 75
    • 90

    Mostly Cloudy

    • 78
    • 90

    Mostly Cloudy

    • 78
    • 90

    Chance Thunderstorms

    • 75
    • 88

    Chance Thunderstorms

    • 72
    • 85

    Rain Showers Likely

Today 15 May Hays

Mostly cloudy. Highs around 90. South Winds 10 to 15 Mph with Gusts up to 30 Mph.

Tonight 15 May Hays

Mostly cloudy. Near steady temperature in the upper 60s. South Winds 5 to 10 Mph with Gusts up to 30 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Greater Castle Forest Temperature Statistics

May Temperature

San Marcos, San Marcos Municipal Airport (5.6 miles)

  • Lowest 2 May, 2026

    50 °F

  • Average May

    70.6 °F

  • Highest 9 May, 2026

    89.1 °F

Climate (2021–Present)

San Marcos, San Marcos Municipal Airport (5.6 miles)

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  • Average Low 2021–2026

    60 °F

  • Average 2021–2026

    70.7 °F

  • Average High 2021–2026

    82.3 °F
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